* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: 40px 20px;
}

.container {
  max-width: 500px;
  width: 100%;
}

h1 {
  text-align: center;
  color: #fff;
  margin-bottom: 30px;
  font-size: 28px;
}

/* Product List */
.product-list { display: flex; flex-direction: column; gap: 16px; }

.product-card {
  background: #fff;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.product-card h2 { font-size: 20px; color: #333; margin-bottom: 8px; }

.price { font-size: 28px; color: #e74c3c; font-weight: bold; margin-bottom: 8px; }

.desc { color: #888; font-size: 14px; margin-bottom: 16px; }

.btn {
  display: inline-block;
  background: #07c160;
  color: #fff;
  padding: 10px 24px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 16px;
  border: none;
  cursor: pointer;
  text-align: center;
}

.btn:hover { background: #06ad56; }

.btn-back { background: #666; margin-top: 16px; display: block; }
.btn-back:hover { background: #555; }

/* Pay */
.pay-card, .error-card, .success-card {
  background: #fff;
  border-radius: 12px;
  padding: 32px 24px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  text-align: center;
}

.order-info {
  margin: 20px 0;
  text-align: left;
  background: #f9f9f9;
  padding: 16px;
  border-radius: 8px;
}

.order-info p { margin: 6px 0; color: #555; font-size: 14px; }
.order-info p span { float: right; color: #333; font-weight: 500; }

.qrcode-wrapper { margin: 24px 0; }

.qrcode-wrapper img { width: 260px; height: 260px; }

.hint { color: #888; font-size: 14px; margin-top: 12px; }

.status {
  padding: 12px;
  border-radius: 6px;
  font-size: 16px;
  margin: 16px 0;
}

.status.pending { background: #fff3cd; color: #856404; }
.status.success { background: #d4edda; color: #155724; }
.status.failed { background: #f8d7da; color: #721c24; }

/* Error */
.error-card h1 { color: #e74c3c; }
.error-card p { color: #666; margin: 16px 0; }

/* Success */
.success-card h1 { color: #07c160; }

/* Navigation */
.nav-btn { display: block; margin-top: 20px; background: rgba(255,255,255,0.2); text-align: center; }
.nav-btn:hover { background: rgba(255,255,255,0.3); }

/* Orders */
.orders-card {
  background: #fff;
  border-radius: 12px;
  padding: 16px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
  overflow-x: auto;
}

.container:has(.orders-card) { max-width: 700px; }

.orders-table { width: 100%; border-collapse: collapse; font-size: 13px; }

.orders-table th {
  background: #f5f5f5;
  padding: 10px 8px;
  text-align: left;
  font-weight: 600;
  color: #555;
  border-bottom: 2px solid #eee;
}

.orders-table td {
  padding: 10px 8px;
  border-bottom: 1px solid #f0f0f0;
  color: #333;
}

.orders-table tbody tr:hover { background: #fafafa; }

.order-id { font-family: monospace; color: #888; font-size: 12px; }

.empty { text-align: center; color: #999; padding: 40px 0; font-size: 16px; }

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 500;
}

.badge-creating { background: #e8e8e8; color: #666; }
.badge-pending { background: #fff3cd; color: #856404; }
.badge-success { background: #d4edda; color: #155724; }
.badge-failed { background: #f8d7da; color: #721c24; }